Definition: Given a 'poster' sentence and a corresponding 'response' (often, from Facebook or Reddit)classify the sentiment of the given response into four categories: 1) Positive, 2) Negative, 3) Neutral, and 4) Mixed if it contains both positive and negative.
Input: Poster: #TaxiCabConfessions or #Cops only @SethGreen knows for sure! http://t.co/op6AM1kd  Responser: Or maybe a little bit of both. #policecarconfessions

Positive